Nobody likes to be in a situation where the central heating doesn't work and you're in the cold. You shouldn't even think about the fact that the shower only gives cold water. Yet it happens more often than you think. Installer Frank knows the situation all too well. We often don't realise it, but we trust that our central heating boiler will always work. We would like to avoid malfunctions and unnecessary repairs. Everyone also understands that a central heating boiler, just like a car, is a mechanical device that needs to be maintained properly.